mkvmerge subtitles with different fps rate (srt: 23.976fps, mkv: 25fps)

mkvmergesubs.sh

#!/usr/bin/zsh

mkdir -p old
for var in $(ls *.srt | awk -F ".srt" '{print $1}')
do
  mkvmerge --priority higher       \
           -o "$(print $var)1.mkv" \
           "$(print $var).mkv"     \
           --language 0:eng        \
           --default-track 0:true  \
           --language 0:eng        \
           --sync 0:0,23.976/25    \
           --sub-charset 0:UTF8    \
           "$(print $var).srt"

  mv "$(print $var).mkv" "old/$(print $var).mkv"
  mv "$(print $var).srt" "old/$(print $var).srt"
  mv "$(print $var)1.mkv" "$(print $var).mkv"
done